Product Description
Add clean, usable power to your early common-rail Cummins with the Exergy E02 20106 45% Over Injector Set. Built NEW (not reman) and flow-matched by Exergy Performance, these injectors deliver ~45% more fuel than stock while maintaining crisp street manners on 2003–2004 5.9L 24V trucks.
Key Benefits
- NEW Exergy injectors—precision-balanced and flow-verified
- ~45% over stock fueling capacity for tow/street and performance builds
- Excellent atomization and rail control for smooth drivability
- Matched set for consistent cylinder-to-cylinder fueling
Fitment
- Make/Model: 2003–2004 Dodge Ram 2500/3500
- Engine: Cummins 5.9L 24V (early common-rail)
- Direct replacement for OEM CR injectors (early 5.9L CR)
What’s Included
- (6) NEW Exergy 45% Over Injectors (E02 20106)
- Flow/Balance data from Exergy (when provided by manufacturer)
Recommended Supporting Parts
Protect your investment and support stable rail pressure with these popular pairings:
- Shop All Exergy Performance
- 5.9L Cummins CR Injector Catalog (includes Exergy 03–04)
- 03–07 Cummins Fuel System Components (rails, lines, CP3s, etc.)
- Lift Pump Upgrade (03–04)
Install Notes
- Professional installation recommended. Always use clean fuel and replace sealing washers as required.
- Bleed air thoroughly after injector replacement and verify rail pressure under load.
- Tuning is recommended to fully realize performance benefits and manage smoke/EGTs.
Frequently Asked Questions
Q: Are these NEW or remanufactured injectors?
A: NEW. Exergy builds and flow-matches these to tight tolerances.
Q: What power level are 45% overs good for?
A: Ideal for strong tow/street builds and moderate performance setups when paired with a healthy CP3 and lift pump.
Q: Do I need a lift pump?
A: Strongly recommended to stabilize supply pressure and improve filtration for injector and CP3 longevity.
Q: Will these fit late 2004.5–2007 trucks?
A: No. Those use different part numbers—see Exergy late 5.9L (2004.5–2007) options in our catalog.
About Exergy Performance
Exergy specializes in precision diesel fuel system components for modern common-rail platforms. Browse more Exergy products here: Exergy at CPP Diesel.
